/* ===== Design tokens =====
   Palette: deep navy base, near-black panels, electric teal signature accent, warm amber for rewards
   Type: Space Grotesk (display), Inter (body), JetBrains Mono (numbers/balances)
*/
:root {
  --bg: #0b0f14;
  --panel: #121821;
  --panel-2: #171f2a;
  --border: #232c3a;
  --text: #e8edf3;
  --text-dim: #8a97a8;
  --accent: #2dd4bf;      /* electric teal — signature */
  --accent-dim: #1a4a44;
  --reward: #f0a94e;      /* warm amber for reward/claim */
  --danger: #f2555a;
  --success: #34d399;
  --radius: 14px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }

/* ===== Navbar ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,15,20,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; }
.brand-mark {
  background: var(--accent);
  color: #06110f;
  font-size: 13px;
  font-weight: 700;
  padding: 5px 8px;
  border-radius: 8px;
  letter-spacing: 0.5px;
}
.brand-name { font-size: 18px; }
.nav-links { display: flex; align-items: center; gap: 12px; }
.nav-balance {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 600;
  padding: 6px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 20px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:active { transform: scale(0.97); }
.btn-solid { background: var(--accent); color: #06110f; }
.btn-solid:hover { background: #4de0cb; }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost { background: transparent; color: var(--text-dim); }
.btn-ghost:hover { color: var(--text); }
.btn-lg { padding: 14px 26px; font-size: 15px; border-radius: 12px; }
.btn-block { width: 100%; }
.btn-claim {
  background: linear-gradient(135deg, var(--reward), #d9872c);
  color: #1a1206;
  font-family: var(--font-display);
  font-size: 16px;
  padding: 16px 32px;
  border-radius: 14px;
  width: 100%;
}
.btn-claim:hover:not(:disabled) { filter: brightness(1.08); }
.btn-claim:disabled {
  background: var(--panel-2);
  color: var(--text-dim);
  cursor: not-allowed;
}

/* ===== Flash ===== */
.flash {
  max-width: 1100px;
  margin: 16px auto 0;
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
}
.flash-success { background: rgba(52,211,153,0.12); border: 1px solid var(--success); color: var(--success); }
.flash-error { background: rgba(242,85,90,0.12); border: 1px solid var(--danger); color: var(--danger); }

/* ===== Hero ===== */
.hero { padding: 90px 24px 60px; }
.hero-inner { max-width: 780px; margin: 0 auto; text-align: center; }
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  background: rgba(45,212,191,0.08);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: 46px;
  line-height: 1.15;
  font-weight: 700;
  margin: 0 0 20px;
}
.hero h1 .hl { color: var(--accent); }
.hero-sub { color: var(--text-dim); font-size: 17px; max-width: 560px; margin: 0 auto 34px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num { font-family: var(--font-mono); font-size: 24px; font-weight: 600; color: var(--accent); }
.stat-label { font-size: 12px; color: var(--text-dim); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.05em; }

/* ===== Auth ===== */
.auth-section { padding: 20px 24px 100px; display: flex; justify-content: center; }
.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.auth-tabs { display: flex; gap: 6px; background: var(--panel-2); border-radius: 10px; padding: 4px; margin-bottom: 22px; }
.auth-tab {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-weight: 600;
  font-size: 14px;
  border-radius: 8px;
  cursor: pointer;
}
.auth-tab.active { background: var(--accent); color: #06110f; }
.auth-form { display: none; flex-direction: column; gap: 6px; }
.auth-form.active { display: flex; }
.auth-form label { font-size: 13px; color: var(--text-dim); margin-top: 10px; }
.auth-form input, .auth-form select {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 11px 13px;
  border-radius: 9px;
  font-size: 14px;
  font-family: var(--font-body);
}
.auth-form input:focus, .auth-form select:focus { outline: none; border-color: var(--accent); }
.auth-form .btn { margin-top: 20px; }
.ref-note { font-size: 12px; color: var(--accent); margin-top: 4px; }

/* ===== Dashboard ===== */
.dashboard { padding: 50px 24px 100px; }
.dash-inner { max-width: 640px; margin: 0 auto; display: flex; flex-direction: column; gap: 20px; }

.balance-card, .claim-card, .referral-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
}
.balance-label, .claim-label, .referral-label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.balance-amount {
  display: block;
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
}
.claim-amount {
  font-family: var(--font-mono);
  font-size: 28px;
  color: var(--reward);
  font-weight: 600;
  margin-bottom: 18px;
}
.claim-timer { margin-top: 14px; font-family: var(--font-mono); color: var(--text-dim); font-size: 14px; }
.claim-msg { margin-top: 10px; font-size: 14px; font-weight: 500; min-height: 20px; }
.claim-msg.ok { color: var(--success); }
.claim-msg.err { color: var(--danger); }

.referral-box { display: flex; gap: 8px; }
.referral-box input {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 11px 13px;
  border-radius: 9px;
  font-family: var(--font-mono);
  font-size: 13px;
}
.referral-hint { color: var(--text-dim); font-size: 13px; margin: 14px 0 0; }

/* ===== Modal ===== */
.modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 100; align-items: center; justify-content: center; }
.modal.open { display: flex; }
.modal-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 400px;
  position: relative;
}
.modal-box h3 { font-family: var(--font-display); margin-top: 0; }
.modal-box form { display: flex; flex-direction: column; }
.modal-box label { font-size: 13px; color: var(--text-dim); margin-top: 10px; }
.modal-box input, .modal-box select {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 11px 13px;
  border-radius: 9px;
  font-size: 14px;
  margin-top: 4px;
}
.modal-box .btn { margin-top: 20px; }
.modal-close {
  position: absolute;
  top: 14px; right: 16px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 22px;
  cursor: pointer;
}

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--border); padding: 30px 24px; margin-top: 40px; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.footer-brand { display: flex; align-items: center; gap: 8px; font-family: var(--font-display); font-weight: 600; }
.footer-links { font-size: 13px; color: var(--text-dim); }
.footer-links a:hover { color: var(--accent); }
.dot { margin: 0 8px; opacity: 0.4; }
.footer-copy { font-size: 12px; color: var(--text-dim); opacity: 0.7; }

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .hero h1 { font-size: 32px; }
  .hero-stats { gap: 24px; }
  .nav-balance { display: none; }
}